From 3c2a96699e9fc09b5712dacfe200cdaaff0bb55c Mon Sep 17 00:00:00 2001 From: Don Slutz Date: Thu, 19 Jun 2014 21:40:24 -0400 Subject: xen-hvm: Fix xen_hvm_init() to adjust pc memory layout This is just below_4g_mem_size and above_4g_mem_size which is used later in QEMU. Acked-by: Stefano Stabellini Signed-off-by: Don Slutz Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- xen-hvm.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) (limited to 'xen-hvm.c') diff --git a/xen-hvm.c b/xen-hvm.c index aac38efb09..5bcebddf76 100644 --- a/xen-hvm.c +++ b/xen-hvm.c @@ -155,10 +155,11 @@ qemu_irq *xen_interrupt_controller_init(void) /* Memory Ops */ -static void xen_ram_init(ram_addr_t ram_size, MemoryRegion **ram_memory_p) +static void xen_ram_init(ram_addr_t *below_4g_mem_size, + ram_addr_t *above_4g_mem_size, + ram_addr_t ram_size, MemoryRegion **ram_memory_p) { MemoryRegion *sysmem = get_system_memory(); - ram_addr_t below_4g_mem_size, above_4g_mem_size = 0; ram_addr_t block_len; block_len = ram_size; @@ -173,10 +174,11 @@ static void xen_ram_init(ram_addr_t ram_size, MemoryRegion **ram_memory_p) vmstate_register_ram_global(&ram_memory); if (ram_size >= HVM_BELOW_4G_RAM_END) { - above_4g_mem_size = ram_size - HVM_BELOW_4G_RAM_END; - below_4g_mem_size = HVM_BELOW_4G_RAM_END; + *above_4g_mem_size = ram_size - HVM_BELOW_4G_RAM_END; + *below_4g_mem_size = HVM_BELOW_4G_RAM_END; } else { - below_4g_mem_size = ram_size; + *above_4g_mem_size = 0; + *below_4g_mem_size = ram_size; } memory_region_init_alias(&ram_640k, NULL, "xen.ram.640k", @@ -189,12 +191,13 @@ static void xen_ram_init(ram_addr_t ram_size, MemoryRegion **ram_memory_p) * the Options ROM, so it is registered here as RAM. */ memory_region_init_alias(&ram_lo, NULL, "xen.ram.lo", - &ram_memory, 0xc0000, below_4g_mem_size - 0xc0000); + &ram_memory, 0xc0000, + *below_4g_mem_size - 0xc0000); memory_region_add_subregion(sysmem, 0xc0000, &ram_lo); - if (above_4g_mem_size > 0) { + if (*above_4g_mem_size > 0) { memory_region_init_alias(&ram_hi, NULL, "xen.ram.hi", &ram_memory, 0x100000000ULL, - above_4g_mem_size); + *above_4g_mem_size); memory_region_add_subregion(sysmem, 0x100000000ULL, &ram_hi); } } @@ -958,7 +961,8 @@ static void xen_wakeup_notifier(Notifier *notifier, void *data) xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 0); } -int xen_hvm_init(MemoryRegion **ram_memory) +int xen_hvm_init(ram_addr_t *below_4g_mem_size, ram_addr_t *above_4g_mem_size, + MemoryRegion **ram_memory) { int i, rc; unsigned long ioreq_pfn; @@ -1036,7 +1040,7 @@ int xen_hvm_init(MemoryRegion **ram_memory) /* Init RAM management */ xen_map_cache_init(xen_phys_offset_to_gaddr, state); - xen_ram_init(ram_size, ram_memory); + xen_ram_init(below_4g_mem_size, above_4g_mem_size, ram_size, ram_memory); qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state); -- cgit v1.2.1